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Tools/LangChain

LangChain

Open-source framework for building applications powered by language models.

langchain.com
Screenshot of LangChain
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What is LangChain?

LangChain provides building blocks for developers to chain together LLM calls, tools, and data sources into applications, becoming one of the most widely used frameworks for building AI apps.

Key features

  • Composable LLM application building blocks
  • Broad ecosystem of integrations
  • Open-source with a paid observability platform

Pricing

Freemium

Free open-source, paid LangSmith platform

Verify on the official pricing page →

LangChain use cases

  • 1Building an LLM-powered application from reusable components
  • 2Chaining together model calls, tools, and data sources
  • 3Prototyping AI applications quickly with a large ecosystem

Who is LangChain for?

Developers

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